I made a windcover with a monster BFC can and it gets way hot almost to the point where it seems like it cant take much more and thats just from two or three coals.

if you do ever finish your BFC windcover make sure to wrap some electrical tape or anything else that will help not burn your hand when you try to pick it up

but what might work is like an empty can of beans or any vegetable can (if you dont have the large empty can of coffee) cause the aluminum or metal or whatever is much thicker than a monster BFC can. Just make sure that all the paper around the outside is off of the can. you dont want to be startin any fires lol.